Braiding-machine



E. WALTER.-

BRAIDING MACHINE.

APPLICATION FILED AUG-7,1918.

Patented J an. 13, 1920.

EBWIN WALTER, OF MELLINGEN, SWITZERLAND.

BRAIDING-MACHINE.

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed August 7, 1918. Serial No. 248,787.

To all whom it may concern:

Be it known that I, ERWIN WALTER, a citizen of the Republic of Switzerland, residing at Mellingen, Aargau, Switzerland, have invented certain new and useful Improvements in Braiding-Machines; and I do hereby declare the following to be a clear, full, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a part of this specification.

The present invention relates to improvements in that type of braiding machines in which the bobbins are driven by revoluble driving members and are positively traveled in a guide'plate.

In prior machines of this type the revoluble drivers are provided at their periphery with notches for receiving the bobbin spindles and for sinuously advancing them in the guide plate in well known positive man ner, the movement of each driver being obtained by individual toothed wheels rigidly secured to the shaft of the drivers and located below the guide plate, in such manner that the main drive of the machine acts on one or several of these gears, which primarily driven gears then in turn drive the others. According to the present invention the drivers are provided with the usual peripheral notches for receiving and moving the bobbin spindles and are further pro vided with means for directly transmitting their rotary movement to the respectively adjacent drivers. These means may be in the form of curved toothed segments interrupted by the spindle receiving notches, or they may be represented by wheels the toothed rims of which are mutilated in places to present the notches for the reception of the spindles. The relative arrangement and the dimensions of the spindles,the notches and the gear sections are such that on the transference of a spindle from one driver to another the spindle drive will proceed shocklessly and without noticeable friction.

In the accompanying drawing I have illustrated my invention by way of example in two constructional modifications.

Figure 1 represents a vertical section through the guide plate and one of the spindl drivers according to the first @Qnstru* tional example, sectioned on line XX of Fig. 2, with the other parts in elevation;

Fig. 2 shows .a top view, partly in section on line YY of Fig. 1, looking downward in the direction of the arrows;

Fig. 3 illustrates a vertical through two spindle drivers according to the second example, and

Figs. 4, 5 and 6 represent top views of the three disks making up the spindle drivers of Fig. 3. Each revoluble driver 1 (Figs. 1 and 2) 1s freely rotatable on a stud or bolt 2 rigidly secured in the guide plate 3. The periphery of each driver is provided with teeth, and all the drivers are in mutual engagement. The toothed driver rim is mutilated at equidistant points andnotches 4 are provided at these points, which serve to receive and advance the spindles 5. One of the driving wheels, for instance A in Fig. 2,- is positively driven from the spur wheel 6 of the main machine drive by means of the intermediate gears 7 and 8, the latter fast on the shaft of wheel A, and drives the meshing drivers B and C, and the latter actuate in turn the drivers D and E, and so on.

The bobbin spindle, in wandering over the guide plate 3, passes from one driver over into the succeeding one and in so doing acts in the manner of a pin-drive, by transmitting the pressure exerted upon it by the driving driver to the succeeding driven driver. The spindles, the notches, and the gear rims are so dimensioned, and coacting that the velocity of travel, transmitted by the spindles, is equal to that transmitted by the rim teeth before as well as after the transference of the spindle from one driver to the other. I

In the construction illustrated in Figs. 36 the spindle drivers are built up of three disks 9, 10 and 11, which are preferably riveted together and of which the disk 9 shows the notches 12 for handling the spindles. The profile of these notches 12 is such that the spindles wander playlessly from the one driver over into the neighboring one and transmit during this passage the peripheral force of the one to the other.

The disk 10 (Fig. 5) is in the form of a mutilated toothed wheel, milled out at the points 13, and upon the three disks being properly assembled, these recesses 13 coincide with the notches 12 in the adjacent disk 9, The third disk 11 mer y serves the section purpose of making the height of the driver equal to the length of the respective spindle portions. The three disks are combined in such manner that, as shown in Fig. 3, in one driver unit the succession of the disk from below upward is 11, 10 and 9, while in the adjacent meshing driver units it is 9, 10 and 11. The several disks have coinciding central openings H, 15 and 16, into which snugly fits the blush or sleeve 17 and they are further provided with corresponding perforations 18 for receiving the rivets 19, which latter also pass through a sleeve flange 21, whereby the several disks and the sleeve 17 are rigidly interconnected to form a unit. The sleeve 17 of one of the drivers is extended downwardly to below the guide plate, and a toothed wheel is secured to its lower end which is driven from the main drive in suitable manner, for instance as described above with reference to the first treated construction.

The described constructions offer the following advantages:

The weight of my improved braiding machine is considerably reduced, since the individual gears for the drivers and the special plate for journaling them, which the old type machines all resorted to, have been dispensed with, making the machine simpler lighter and cheaper. The cooperation of the spindle drivers on the spindles passing over from one driver into the next is far more accurate than in the prior machines of this type, inasmuch as in the present construction improper timing of the notches of adjacent drivers due to faulty assembling is absolutely impossible, as is likewise, owing to the playless meshing of teeth, an undesired after-displacement of a driver relative to the adjacent ones, which latter defect is apt to show itself in the old machines, where the driving gears are mounted by themselves below the guide plate and the notched drivers are mounted also independently above the guide plate, which arrangement, obviously, diflers materially from my construction. The wear of my drivers, thus, is considerably reduced and the braider can be driven more quickly and the output correspondingly increased.

What I claim is: 1. In a braiding machine, in combination with a guide plate and bobbin spindles traveled therein, a plurality of studs rigidly secured in said guide plate, driver units revolubly mounted on said studs and adapted to coact with said spindles, each said driver unit comprising a sleeve freely rotatable on one of said studs, a set of disks rigidly secured on said sleeve, one disk thereof provided with peripheral notches for cooperation with said spindles, a second disk presenting coinciding peripheral notches and gear teeth between each two notches, and the third disk serving to make the thickness of the assembled set of disks equal to the extent of the cooperating portion of said spindles, the notch-interrupted gears of the several driver units all being in mutual engagement, and means in connection with one of said drivers adapted to be operated by the main machine drive.

2. In a braiding machine, in combination with a guide plate and bobbin spindles traveled therein, a plurality of studs rigidly secured in said guide plate, driver units revolubly mounted on said studs and adapted to coact with said spindles, each of said driver units comprising a sleeve freely rotatable on one of said studs, a set of disks rigidly secured on said sleeve, one disk thereof provided with peripheral notches for cooperation with said spindles, a second disk presenting corresponding peripheral notches and gear teeth between each two notches, and a further disk making up the required disk-set thickness, the order of succession of these disks in each driver unit being reversed from' that of the respectively adjacent meshing units and the notch-interrupted gears of the several driver units all being in mutual engagement, and means in connection with one of said drivers adapted to be operated by the main machine drive.

In testimony that I claim the foregoing as'my invention, I have signed m name.

nnwnv WALTER. 

